SSC Government Jobs Exams Numerical Ability Percentage

Successive discount of 10% , 20% and 50% will be equivalent to a single discount of-

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Let 100 be the marked price
0.9*0.8*0.5*100=36 is the price after the 3 successive discounts
Answer=100-36=64%
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SSC Other Question

The ratio of areas of two triangles is equal to the ratio of the product of their base and corresponding height. A retailer offers the following discount schemes for buyers on an article-
I. Two successive discounts of 10%
II. A discount of 12% followed by a discount of 8%.
III. Successive discounts of 15% and 5%
IV. A discount of 20%
The selling price will be minimum under the scheme-
1) I
2) II
3) III
4) IV